ASTROSAT CZTI

Data Quality Report

Orbit 10595

Creation date: 2024-06-27T16:01:15.917712
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1T01_191T01_9000001536_10595cztM0_level2.evt modeM0/AS1T01_191T01_9000001536_10595cztM0_level2_quad_clean.evt
Size (bytes)415,609,92074,609,280
Size396.4 MB 71.2 MB
Events in quadrant A2,712,611475,141
Events in quadrant B3,796,401467,696
Events in quadrant C2,667,856479,846
Events in quadrant D3,031,022446,579

Level1 data integrity


Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01120
B01120
C01120
D01120

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0140
B0140
C0140
D0140

Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0115522
B0148451
C0114351
D0124461

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A5576310.555954%
B55763035.434003%
C5576140.251076%
D5576300.538020%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 6906 5577 1 1 0.01% 0.02%
B 6906 5577 166 166 2.40% 2.98%
C 6906 5577 0 0 0.00% 0.00%
D 6906 5577 12 12 0.17% 0.22%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 1 162 13837 92.43 696 686 142.3
A 0 226 6442 40.46 696 686 142.3
A 12 194 5565 34.29 696 686 142.3
B 4 239 992893 7686.31 694 682 129.1
B 4 80 40441 308.0 694 682 129.1
B 0 214 27544 208.09 694 682 129.1
C 4 175 10996 66.29 680 686 155.5
C 13 61 4996 27.71 680 686 155.5
C 14 234 3057 15.24 680 686 155.5
D 2 16 293534 1819.02 666 649 161.0
D 8 195 99320 612.82 666 649 161.0
D 13 104 54734 335.91 666 649 161.0

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter